Magnetic properties and phase stability of tetragonal Ce1-xSmxFe9Co2Ti 1:12 phase for permanent magnets

Martin-Cid, A.; Salazar, D.; Schönhöbel, A. M.; Garitaonandia, J. S.; Barandiaran, J. M.; Hadjipanayis, G. C.

doi:10.1016/j.jallcom.2018.03.325

Title: Magnetic properties and phase stability of tetragonal Ce1-xSmxFe9Co2Ti 1:12 phase for permanent magnets

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Abstract

In this work, we report the effects of partial substitution of Ce by Sm in CeFe₉Co₂Ti alloys on their magnetic and structural properties. The alloys were prepared in bulk and melt-spun ribbons. The alloys present the ThMn₁₂ phase in the full range of substitutions, and reach anisotropy fields above 8 T for the best alloy. After heat treatment, melt-spun ribbons show high values of magnetization (>112 A m²/kg), Curie temperatures >370°C and enhanced coercivity. Although the coercivity values obtained are already suitable for permanent magnet applications, they are still low as compared to the anisotropy field (less than 6%). Coercivity is expected to improve by optimizing the microstructure of the best samples.

Authors:

;

; Schönhöbel, A. M.; Garitaonandia, J. S.; Barandiaran, J. M.; Hadjipanayis, G. C.

Publication Date:: 2018-06-01

Research Org.:: Univ. of Delaware, Newark, DE (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1430161

Alternate Identifier(s):: OSTI ID: 1511581

Grant/Contract Number:: FG02-90ER45413

Resource Type:: Published Article

Journal Name:: Journal of Alloys and Compounds

Additional Journal Information:: Journal Name: Journal of Alloys and Compounds Journal Volume: 749 Journal Issue: C; Journal ID: ISSN 0925-8388

Publisher:: Elsevier

Country of Publication:: Netherlands

Language:: English

Subject:: 36 MATERIALS SCIENCE; ThMn12 structure; Permanent magnets; Melt-spun ribbons; Nanocrystallization

Citation Formats


                    Martin-Cid, A., Salazar, D., Schönhöbel, A. M., Garitaonandia, J. S., Barandiaran, J. M., and Hadjipanayis, G. C. Magnetic properties and phase stability of tetragonal Ce1-xSmxFe9Co2Ti 1:12 phase for permanent magnets.  Netherlands: N. p., 2018. 
Web.  doi:10.1016/j.jallcom.2018.03.325.

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                    Martin-Cid, A., Salazar, D., Schönhöbel, A. M., Garitaonandia, J. S., Barandiaran, J. M., & Hadjipanayis, G. C. Magnetic properties and phase stability of tetragonal Ce1-xSmxFe9Co2Ti 1:12 phase for permanent magnets.  Netherlands.  https://doi.org/10.1016/j.jallcom.2018.03.325

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                    Martin-Cid, A., Salazar, D., Schönhöbel, A. M., Garitaonandia, J. S., Barandiaran, J. M., and Hadjipanayis, G. C. Fri .  
"Magnetic properties and phase stability of tetragonal Ce1-xSmxFe9Co2Ti 1:12 phase for permanent magnets".  Netherlands.  https://doi.org/10.1016/j.jallcom.2018.03.325.

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@article{osti_1430161,

  title        = {Magnetic properties and phase stability of tetragonal Ce1-xSmxFe9Co2Ti 1:12 phase for permanent magnets},

  author       = {Martin-Cid, A. and Salazar, D. and Schönhöbel, A. M. and Garitaonandia, J. S. and Barandiaran, J. M. and Hadjipanayis, G. C.},

  abstractNote = {In this work, we report the effects of partial substitution of Ce by Sm in CeFe9Co2Ti alloys on their magnetic and structural properties. The alloys were prepared in bulk and melt-spun ribbons. The alloys present the ThMn12 phase in the full range of substitutions, and reach anisotropy fields above 8 T for the best alloy. After heat treatment, melt-spun ribbons show high values of magnetization (>112 A m2/kg), Curie temperatures >370°C and enhanced coercivity. Although the coercivity values obtained are already suitable for permanent magnet applications, they are still low as compared to the anisotropy field (less than 6%). Coercivity is expected to improve by optimizing the microstructure of the best samples.},

  doi          = {10.1016/j.jallcom.2018.03.325},

  journal      = {Journal of Alloys and Compounds},

  number       = C,

  volume       = 749,

  place        = {Netherlands},

  year         = {2018},

  month        = {6}

}

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